Probe pin



FIG. 1 is a perspective view of a probe pin;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The dashed broken lines in the figures show portions of the probe pin that form no part of the claimed design. The dot-dash broken lines in the figures show boundaries of the claimed design. 

CLAIM The ornamental design for a probe pin, as shown and described. 